Zirconium oxide dispersion strengthening palladium-gold alloy producing method

A palladium-gold alloy and dispersion-strengthening technology, which is applied in the field of zirconia dispersion-strengthening palladium-gold alloy and its production field, and achieves the effects of novel composition, good use economy and favorable export.

Active Publication Date: 2010-06-23
英特派铂业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-temperature durable strength and load-bearing capacity of this alloy exceed Pt-40Rh, and it can be used under high-temperature oxidation conditions, but platinum-rhodium is volatile, the grains are coarsened, the strength is reduced and creep occurs, the service life is limited, and the price is expensive. Large loss of rhodium, high investment and use costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment one: Pd100%.

[0019] Technical performance: when subjected to the same stress at high temperature, the fracture life is about 0.005 times that of ZGSPt-5Rh.

Embodiment 2

[0020] Embodiment 2: Au1.5%, Pd96.4%, Pt2.0%, Zr0.1%.

[0021] Technical performance: when subjected to the same stress at high temperature, the fracture life is about 30 times that of ZGSPt-5Rh.

Embodiment 3

[0022] Embodiment 3: Au3.5%, Pd92.2%, Pt4.0%, Zr0.3%.

[0023] Technical performance: when subjected to the same stress at high temperature, the fracture life is about 48 times that of ZGSPt-5Rh.

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PUM

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Abstract

The invention relates to a precious metal alloy, in particular to zirconia dispersion strengthening polarium and a method for preparation. According to the technical scheme of the invention, the dispersion strengthening polarium comprises palladium, gold and zirconium, wherein the content of the gold is bigger than 0 and is equal or less than 7 percent, the content of the zirconium is bigger than0 and is equal or less than 0.7 percent, the allowance is palladium, the zirconium is dispersed in the alloy in the mode of zirconia, and the unit is weight percent. The invention is capable of replacing zirconia dispersion strengthening platinum-rhodium alloy, thereby reducing the fund input and service wear of a production line, greatly reducing the production cost of glass, and increasing the economic benefit.

Description

technical field [0001] The invention relates to a precious metal alloy, in particular to a zirconia dispersion strengthened palladium-gold alloy and a production method thereof. Background technique [0002] This alloy is mainly used in the manufacture of key equipment in glass fiber, electronic glass (CRT, TFT), and optical glass industry. At present, ZGSPt-Rh (zirconia dispersion strengthened platinum-rhodium alloy) is used in these industries, and the composition is rhodium Rh5~10 %, platinum Pt is the balance, zirconium Zr content <0.5%. The high-temperature durable strength and load-bearing capacity of this alloy exceed Pt-40Rh, and it can be used under high-temperature oxidation conditions, but platinum-rhodium is volatile, the grains are coarsened, the strength is reduced and creep occurs, the service life is limited, and the price is expensive. The loss of rhodium is large, and the investment and use costs are high. Contents of the invention [0003] The pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/04C22C1/02C22F1/14
Inventor 吴显忠蒋正荣杨志先尹俊
Owner 英特派铂业股份有限公司
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